Research Article
Radiation Dose Optimization in Interventional Cardiology: A Teaching Hospital Experience
Table 3
The CA procedural characteristics of phase-specific populations.
| | Characteristics | Phase 1 | Phase 2 | Phase 3 | Phase 4 | Phase 5 | value |
| | LV% | 87 | 86 | 86 | 79 | 80 | 0.8 | | Radial % | 57 | 72 | 66 | 61 | 59 | 0.2 | | No. of acquisitions | 8.4 (1.6) | 8.3 (1.7) | 8.4 (1.5) | 8.6 (1.5) | 8.5 (1.7) | 0.8 | | Air kerma (mGy) | 0.68 (0.47–0.95) | 0.63 (0.4–0.84) | 0.59 (0.42–0.80) | 0.46 (0.29–0.57) | 0.3 (0.2–0.38) | <0.0001 | | DAP (Gy·cm2) | 60.2 (43–84.6) | 53.0 (36.5–69.7) | 49.2 (36.5–68.4) | 36.4 (25.2–46.9) | 28.0 (17.6–35.2) | <0.0001 | | Total study time | 4.5 (3.4–6.4) | 4.8 (3.6–7.6) | 5 (2.8–7.0) | 5 (2.6–7.6) | 4.2 (3.2–6.4) | 0.2 |
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